The 95% Confidence Interval for GNSS-Derived Site Velocities

2022 ◽  
Vol 148 (1) ◽  
Author(s):  
Guoquan Wang
Keyword(s):  
Confidence Interval

Development of apical pits in chloride cells of the gills of Pimephales promelas after chronic exposure to acid water

1983 ◽  
Vol 41 ◽  
pp. 462-463
Author(s):  
Richard L. Leino ◽  
Jon G. Anderson ◽  
J. Howard McCormick
Keyword(s):  
Confidence Interval ◽  
Chronic Exposure ◽  
Lake Superior ◽  
Pimephales Promelas ◽  
Chloride Cells ◽  
Fathead Minnows ◽  
Secondary Lamellae ◽  
Untreated Water ◽  
Water Ph ◽  
Flow Through

Groups of 12 fathead minnows were exposed for 129 days to Lake Superior water acidified (pH 5.0, 5.5, 6.0 or 6.5) with reagent grade H2SO4 by means of a multichannel toxicant system for flow-through bioassays. Untreated water (pH 7.5) had the following properties: hardness 45.3 ± 0.3 (95% confidence interval) mg/1 as CaCO3; alkalinity 42.6 ± 0.2 mg/1; Cl- 0.03 meq/1; Na+ 0.05 meq/1; K+ 0.01 meq/1; Ca2+ 0.68 meq/1; Mg2+ 0.26 meq/1; dissolved O2 5.8 ± 0.3 mg/1; free CO2 3.2 ± 0.4 mg/1; T= 24.3 ± 0.1°C. The 1st, 2nd and 3rd gills were subsequently processed for LM (methacrylate), TEM and SEM respectively.Three changes involving chloride cells were correlated with increasing acidity: 1) the appearance of apical pits (figs. 2,5 as compared to figs. 1, 3,4) in chloride cells (about 22% of the chloride cells had pits at pH 5.0); 2) increases in their numbers and 3) increases in the % of these cells in the epithelium of the secondary lamellae.

Efficacy of Vitamin D on Chronic Heart Failure Among Adults

2020 ◽  
Vol 90 (1-2) ◽  
pp. 49-58 ◽  
Author(s):  
Wang Chunbin ◽  
Wang Han ◽  
Cai Lin
Keyword(s):  
Heart Failure ◽  
Vitamin D ◽  
Chronic Heart Failure ◽  
Left Ventricular Ejection Fraction ◽  
Confidence Interval ◽  
Left Ventricular ◽  
Left Ventricular Ejection ◽  
Controlled Trials ◽  
Ventricular Ejection Fraction ◽  
Randomized Controlled

Abstract. Vitamin D deficiency commonly occurs in chronic heart failure. Whether additional vitamin D supplementation can be beneficial to adults with chronic heart failure remains unclear. We conducted a meta-analysis to derive a more precise estimation. PubMed, Embase, and Cochrane databases were searched on September 8, 2016. Seven randomized controlled trials that investigated the effects of vitamin D on cardiovascular outcomes in adults with chronic heart failure, and comprised 592 patients, were included in the analysis. Compared to placebo, vitamin D, at doses ranging from 2,000 IU/day to 50,000 IU/week, could not improve left ventricular ejection fraction (Weighted mean difference, WMD = 3.31, 95% confidence interval, CL = −0.93 to 7.55, P < 0.001, I2 = 92.1%); it also exerts no beneficial effects on the 6 minute walk distance (WMD = 18.84, 95% CL = −24.85 to 62.52, P = 0.276, I2 = 22.4%) and natriuretic peptide (Standardized mean difference, SMD = −0.39, 95% confidence interval CL = −0.48 to 0.69, P < 0.001, I2 = 92.4%). However, a dose-response analysis from two studies demonstrated an improved left ventricular ejection fraction with vitamin D at a dose of 4,000 IU/day (WMD = 6.58, 95% confidence interval CL = −4.04 to 9.13, P = 0.134, I2 = 55.4%). The results showed that high dose vitamin D treatment could potentially benefit adults with chronic heart failure, but more randomized controlled trials are required to confirm this result.

Confidence Interval Pictures Can Give Better Inference Than Significance Testing

2006 ◽  
Author(s):  
Geoff Cumming ◽  
Melissa Coulson ◽  
Michelle Healey ◽  
Fiona Fidler
Keyword(s):  
Confidence Interval ◽  
Significance Testing

Using Connectionist Modules for Decision Support

1990 ◽  
Vol 29 (03) ◽  
pp. 167-181 ◽  
Author(s):  
G. Hripcsak
Keyword(s):  
Decision Support ◽  
Standard Deviation ◽  
Confidence Interval ◽  
Posterior Probability ◽  
Back Propagation ◽  
Connectionist Model ◽  
Test Set ◽  
The Third ◽  
Independent Test ◽  
Better Than

AbstractA connectionist model for decision support was constructed out of several back-propagation modules. Manifestations serve as input to the model; they may be real-valued, and the confidence in their measurement may be specified. The model produces as its output the posterior probability of disease. The model was trained on 1,000 cases taken from a simulated underlying population with three conditionally independent manifestations. The first manifestation had a linear relationship between value and posterior probability of disease, the second had a stepped relationship, and the third was normally distributed. An independent test set of 30,000 cases showed that the model was better able to estimate the posterior probability of disease (the standard deviation of residuals was 0.046, with a 95% confidence interval of 0.046-0.047) than a model constructed using logistic regression (with a standard deviation of residuals of 0.062, with a 95% confidence interval of 0.062-0.063). The model fitted the normal and stepped manifestations better than the linear one. It accommodated intermediate levels of confidence well.

Does Low Protein Concentration of Tissue-type Plasminogen Activator Predict a Low Risk of Spontaneous Deep Vein Thrombosis?

1995 ◽  
Vol 74 (02) ◽  
pp. 718-721 ◽  
Author(s):  
Jørgen Gram ◽  
Johannes Sidelmann ◽  
Jørgen Jespersen
Keyword(s):  
Deep Vein Thrombosis ◽  
Confidence Interval ◽  
Plasminogen Activator ◽  
Fibrinolytic Activity ◽  
Protein Concentration ◽  
Tissue Type ◽  
Vein Thrombosis ◽  
Low Protein ◽  
Deep Vein ◽  
Pai 1

SummaryMany reports have demonstrated an abnormal fibrinolysis in a subset of patients with deep vein thrombosis. We have studied systemic global fibrinolytic activity and protein concentrations of tissue-type plasminogen activator (t-PA) and plasminogen activator inhibitor type 1 (PAI-1) in plasma of 25 young patients with a previous instance of spontaneous deep vein thrombosis documented by phlebography and in 50 healthy controls. The two populations were comparable with respect to a number of base-line variables (age, height, weight, etc.), while the patients had significantly lower fibrinolytic activity (p <0.02), and significantly higher protein concentrations of t-PA (p <0.0001) and PAI-1 (p <0.0006).We used probit scale plots to identify the consequence of different cut-off points to separate patients from controls. Reasonable separation could be obtained for t-PA with a cut-off point of 5.2 ng/ml and for PAI-1 18 ng/ml. The sensitivity and specificity for these cut-off points were for t-PA 73% (95% confidence interval 63%-84%) and for PAI-1 67% (confidence interval 55%-77%). The negative predictive value with a cut-off point t-PA concentration of 5.2 ng/ml was 85% (95% confidence interval 70%-94%). We observed a significantly negative association between concentration of t-PA and fibrinolytic activity (rs = -0.47; p <0.005) and also between PAI-1 and fibrinolytic activity (rs = -0.78; p <0.005).We conclude that a young healthy population is characterized by low protein concentration of t-PA (and PAI-1) compared with young patients with a previous instance of spontaneous vein thrombosis, and we tentatively state that a low protein concentration of t-PA predicts a low risk of spontaneous deep vein thrombosis.

HUBUNGAN KARAKTERISTIK PASIEN DENGAN PEMAHAMAN PERSETUJUAN TINDAKAN MEDIS PADA TINDAKAN BEDAH DI RUMAH SAKITPERTAMINA BINTANG AMIN (RSPBA) BANDAR LAMPUNG BULAN MARET 2015

2019 ◽  
Vol 6 (1) ◽  
pp. 19-28
Author(s):  
Rakhmie Rafie ◽  
Yusmaidi Yusmaidi ◽  
Mira Fitriyani
Keyword(s):  
Informed Consent ◽  
Confidence Interval ◽  
P Value ◽  
Chi Square ◽  
Cross Sectional

Berdasarkan Permenkes 585/1989 dikatakan bahwa informed consent adalah persetujuan yang diberikan oleh pasien atau keluarganya atas dasar penjelasan mengenai tindakan medis yang akan dilakukan terhadap pasien tersebut. Peran dan tanggung jawab dokter terhadap pelaksanaan tindakan medis berdasarkan imformed consent sangat penting untuk mencegah kemungkinan yang akan terjadi kepada pasien nantinya. Pemahaman terhadap informasi yang diberikan dipengaruhi oleh beberapa faktor, diantaranya karakteristik orang tersebut. Survey analitik dengan desain cross sectional dengan wawancara terpimpin menggunakan kuesioner terhadap 100 responden, dan diolah menggunakan analisa univariat dan bivariat dengan uji Chi-Square. Hasil penelitian menunjukkan bahwa: yang berusia dewasa 84 responden (84%) dan yang berusia muda sebanyak 16 responden (16%), laki- laki 63 responden (63%) dan perempuan 37 responden (37%), yang berpendidikan rendah 41 responden (41%) dan yang berpendidikan tinggi 59 responden, yang tidak bekerja 24 responden (24%) sedangkan yang bekerja 76 responden (76%), yang mempunyai pemahaman baik 58 responden (58%) dan yang tidak baik sebanyak 42 responden (42%). Variabel yang terdapat hubungan bermakna dengan pemahaman terhadap persetujuan tindakan medis pada tindakan bedah di RSPBA pada bulan Maret 2015 adalah umur (nilai p value = 0,037) OR = 3.761 dengan nilai Confidence Interval (1.195-11.835)dan pendidikan (nilai p value = 0,00) OR = 8.551 dengan Confidence Interval (3.436-21.285). Sedangkan variabel yang tidak terdapat hubungan bermakna dengan pemahaman persetujuan tindakan medispada tindakan bedah di RSPBA pada bulan Maret 2015 adalah jenis kelamin (nilai p value = 0,987) dan pekerjaan (p value = 0,251). Terdapat hubungan bermakna antara umur dan pendidikan dengan pemahaman terhadap persetujuan tindakan medis pada tindakan bedah di RS Pertamina Bintang Aamin (RSPBA) pada bulan Maret 2015.  

Sign in / Sign up

Export Citation Format

Share Document